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Exploring Pollination Methods: Wind, Water, Animals

Discover the fascinating world of pollination methods through the transfer of pollen grains to the female part of seed plants by agents such as wind, water, and animals. Dive into the functions of flowers in attracting pollinators and explore various techniques used by plants to ensure successful pollination.

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Exploring Pollination Methods: Wind, Water, Animals

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  1. PollinationMethods Susan Martin 7th grade Science

  2. To my darlings…. • You will just look at these pictures and see some of the things we have been talking about. • If you act CRA-CRA Mrs. Cami will make you write all the slides! • ACasey

  3. Pollination • Transfer of pollen grains (male-sperm) to the female part (stigma) of a seed plant by agents such as gravity, water, wind, and animals

  4. Some flowers are JUST male OR female • The Alder is monoecious. Shown here: maturing male flower catkins on right, last year's female catkins on left • (top right) male flower enlarged, showing stamens with pollen and reduced, sterile stigma; (below) shoot with flowers from female plant; (lower right) female flower enlarged, showing stigma and reduced, sterile stamens with no pollen

  5. Function of a Flower • To attract pollinators by colorful petals, scent, nectar, markings and pollen

  6. Pollination Methods- 1. Wind/Gravity • angiosperms& gymnosperms • No bright colors, special odors, or nectar • Most have no petals so Stamens and stigmas exposed to air • Large amount of pollen • lightweight, easily airborne • Usually trees & grasses

  7. 2. water • Pollen floats on the water’s surface drifting until it contacts flowers • Very rare, waterweeds and pondweeds

  8. 3. Animals • A. Insects • Bee- usually yellows or blues, have nectar and/or pollen • Butterfly: usually pinks or purples, scented, may have landing area, lots of nectar with little pollen, nectar guides & long tubes for butterfly tongues

  9. Animals cont. • Insects continued • Moths: usually white, blooms at night, strong sweet scents • Beetles: may be spicy, fruity, or smell like decay • Fly: Can have nectar or pollen, or smell like decay

  10. Animals cont. • B. Birds- greatest nectar specialization, odorless, red or orange flowers, long tubes for hummingbirds • C. Bats: large, white, strong odor, open at night, offer nectar

  11. Resources • http://www.life.umd.edu/CBMG/faculty/Moctezuma/BSCI124/Lectures/PPT/Lec13_Pollination.ppt • http://www.fs.fed.us/wildflowers/pollinators/bees.shtml • http://www.pdphoto.org/PictureHome.php

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